1.API 5L/ASTM A106 GR B carbon Seamless Steel Pipes. 2.Standard: ASTMA511, ... Length6m--12mm OD:6mm-830mm. API 5L/ASTM A106 GR B carbon Seamless Steel Pipes.Description of product:Various ... and more Material: ASTM A 179 A 53 A106, API5L Gr.B X60 X42, Q235B, Q345B, Q345C, 20#, 12Cr1MoV, ... SCH40, STD, SCH80, SCHXS, SCH160, SCHXXS and more Length: 5.8, 6, 12m or customized Usage: petroleum, chemical, power, ...